686x254x140 UB Dimensions & Weight
686x254x140 UB is a BS EN 10365 universal beam with an actual depth of 683.5 mm and a 253.7 mm flange, weighing 140 kg per metre (94.08 lb/ft) — commonly used for longer floor spans and transfer framing.
686x254x140 UB Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (d) | 683.5 mm | 26.909 in |
| Flange width (b) | 253.7 mm | 9.988 in |
| Web thickness (tw) | 12.4 mm | 0.488 in |
| Flange thickness (tf) | 19 mm | 0.748 in |
| Cross-section area (A)computed from weight and steel density | 178.3 cm² | 27.64 in² |
| Mass | 140 kg/m | 94.08 lb/ft |
Standard: BS EN 10365. Values from the published section tables; dimensions not listed here are not shown rather than estimated.
What does 686x254x140 UB weigh and cost?
686x254x140 UB has a mass of 140 kg per metre. At an example material price of 2.00 per kg (in your currency) that is about 280.00 per metre. Set your quantity, length, and price to total your own run:
Material only, example pricing (same currency as the price you enter). Actual steel pricing varies by region, grade, quantity, and market conditions — use your own supplier numbers for real bids.
Pricing more than one size? Build a full member list in the free calculator →
Stop counting 686x254x140 UBs by hand.
Upload your drawing set and SteelFlo puts a box on every steel label it finds — every 686x254x140 UB, on every page — ready to review and export as a bill of materials.
Related sizes
Deeper reading: UK UB & UC Sizes Chart · How to calculate steel weight